@book { RockmyPC,
    title = "Rock my PC",
    subtitle = "Musikproduktion am PC in der Sozialen Arbeit",
    author = "Fabian {Steuer}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836618625",
    url = "https://m.diplom.de/document/226105"
}